Comment The reason is right there at the top of the story (Score 5, Insightful) 85
> The challenge lies in recovery," Holley said. "It's like getting salt out of bread doughâ"we need to do a lot more research, development and policy to make the recovery of these critical minerals economically feasible."
Just because a mineral exists in tailings doesn't mean it's in any way economically reasonable to recover it. This is a geologist pointing out that research needs to be done to make these recovery processes more efficient, and he's right. But the headline is all wrong.